Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Gregory Nayvelt, MD

Pediatrics Physician in Jamaica, NY · enumerated 2010.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558663351

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Gregory Nayvelt

Credential MD

Sex Male

Practice address Jamaica, NY, 11421

Phone (718) 849-8301

Fax (718) 849-8301

Enumeration date Nov 30, 2010

Last updated in NPPES Nov 30, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 174756 (NY) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 174756-1 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Gregory Nayvelt practice?

The practice location on file with NPPES is in Jamaica, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory Nayvelt?

The National Provider Identifier (NPI) for Gregory Nayvelt is 1558663351, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-30.